DE102014006344A1 - Pre-charging a motor vehicle high-voltage network by means of a heater - Google Patents
Pre-charging a motor vehicle high-voltage network by means of a heater Download PDFInfo
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- DE102014006344A1 DE102014006344A1 DE201410006344 DE102014006344A DE102014006344A1 DE 102014006344 A1 DE102014006344 A1 DE 102014006344A1 DE 201410006344 DE201410006344 DE 201410006344 DE 102014006344 A DE102014006344 A DE 102014006344A DE 102014006344 A1 DE102014006344 A1 DE 102014006344A1
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- heating
- precharge
- power source
- voltage
- voltage power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of vehicles
- B60L1/02—Supplying electric power to auxiliary equipment of vehicles to electric heating circuits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/21—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having the same nominal voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/60—Navigation input
- B60L2240/66—Ambient conditions
- B60L2240/662—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/20—Inrush current reduction, i.e. avoiding high currents when connecting the battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
Die Erfindung betrifft eine Vorrichtung zum Trennen und/oder Verbinden eines Hochvoltnetzes (10) eines Kraftfahrzeugs mit einer Hochvolt-Energiequelle (12), mit zumindest einem Hauptschaltelement (HS1, HS2) zum elektrischen Verbinden der Hochvolt-Energiequelle (12) mit einem Pufferkondensator (14), einer Vorladeschaltung (16), die einen Vorladewiderstand (18) aufweist, zum Vorladen des Pufferkondensators (14) und einer Heizeinrichtung (22), die einen Heizwiderstand (24) aufweist, zum Heizen der Hochvolt-Energiequelle (12), wobei der Heizwiderstand (24) einen Anschluss (25) zum Abgreifen des Vorladewiderstands (18) von dem Heizwiderstands (24) aufweist.The invention relates to a device for separating and / or connecting a high-voltage network (10) of a motor vehicle to a high-voltage energy source (12), with at least one main switching element (HS1, HS2) for electrically connecting the high-voltage energy source (12) to a buffer capacitor ( 14), a precharge circuit (16) which has a precharge resistor (18) for precharging the buffer capacitor (14) and a heating device (22) which has a heating resistor (24) for heating the high-voltage energy source (12), wherein the heating resistor (24) has a connection (25) for tapping the precharge resistor (18) from the heating resistor (24).
Description
Die Erfindung betrifft eine Vorrichtung sowie ein Verfahren zum Trennen und/oder Verbinden eines Hochvoltnetzes eines Kraftfahrzeugs mit einer Hochvolt-Energiequelle, mit zumindest einem Hauptschaltelement zum elektrischen Verbinden der Hochvolt-Energiequelle mit einem Pufferkondensator, einer Vorladeschaltung, die einen Vorladewiderstand aufweist, zum Vorladen des Pufferkondensators und einer Heizeinrichtung, die einen Heizwiderstand aufweist, zum Heizen der Hochvolt-Energiequelle.The invention relates to a device and a method for separating and / or connecting a high-voltage network of a motor vehicle with a high-voltage power source, with at least one main switching element for electrically connecting the high-voltage power source with a buffer capacitor, a precharge circuit having a pre-charge for pre-charging the Buffer capacitor and a heater having a heating resistor, for heating the high-voltage power source.
In Kraftfahrzeugen, insbesondere elektrisch angetriebenen Kraftfahrzeugen, kann es vorgesehen sein, elektrische Verbraucher, beispielsweise das Fahrzeugnetz, mit einer Hochvolt-Energiequelle, beispielsweise einer Hochvolt-Batterie, zu versorgen, die eine Hochvolt-Spannung liefert. Unter Hochvolt-Spannung ist eine elektrische Spannung größer als 60 Volt, insbesondere größer als 100 Volt, zu verstehen. Zur Trennung bzw. zum Hinzuschalten dieser Hochvolt-Batterie an das Fahrzeugnetz werden zwei Hauptschaltelemente, beispielsweise Hauptschütze, verwendet. Außerdem ist im Fahrzeugnetz eine Pufferkapazität verbaut, die im Zuschaltvorgang der Batterie aufgeladen wird.In motor vehicles, in particular electrically driven motor vehicles, it may be provided to supply electrical consumers, for example the vehicle network, with a high-voltage power source, for example a high-voltage battery, which supplies a high-voltage voltage. Under high voltage voltage is an electrical voltage greater than 60 volts, in particular greater than 100 volts to understand. To separate or to connect this high-voltage battery to the vehicle network, two main switching elements, such as main contactors are used. In addition, a buffer capacity is installed in the vehicle network, which is charged in the connection process of the battery.
Ohne geeignete Schutzmaßnahmen würde die anfangs ungeladene Kapazität schlagartig und niederohmig mit der Hochvolt-Batterie verbunden werden. Dies führt zu sehr hohen Ladeströmen, die ein Beschädigen der Pufferkapazität bzw. ein Verschweißen der Kontakte des zu schaltenden Hauptschützes hervorrufen würden. Um dieses Problem zu vermeiden, wird in der Regel eine Vorladeschaltung mit einem Vorladewiderstand, welcher die hohen Ladeströme begrenzt, bereitgestellt. Um die Vorladung zu- und abschalten zu können, wird in der Vorladeschaltung ein Vorladeschaltelement, beispielsweise ein Vorladerelais, verwendet.Without suitable protective measures, the initially uncharged capacity would be suddenly and low-impedance connected to the high-voltage battery. This leads to very high charging currents, which would cause damage to the buffer capacity or welding of the contacts of the main contactor to be switched. In order to avoid this problem, a precharge circuit with a precharge resistor, which limits the high charging currents, is generally provided. In order to be able to switch the precharge on and off, a precharge switching element, for example a precharge relay, is used in the precharge circuit.
Die Anforderungen an automobile Hochvolt-Batterien sehen einen Betrieb in einem weiten Temperaturbereich vor, beispielsweise von –40°C bis +80°C. Der Betrieb der Batterie, die beispielsweise aus Lithium-Ionenzellen bestehen kann, im niedrigen Temperaturbereich (T < 0°C) ist dahingehend kritisch, dass ein Belasten ohne Vortemperierung zu inhomogener Erwärmung der Zellen führt. Das inhomogene Erwärmen kann zu einer irreversiblen Schädigung der Zellen führen. Um dieser Schädigung entgegenzuwirken, wird der Batterie ein Heizeinrichtung zugeschaltet. Dazu werden Heizwiderstände, insbesondere Heizmatten, eingesetzt, die zur Vortemperierung der Batterie eingesetzt werden. Heizmatten sind physikalisch als ohmsche Widerstände zu verstehen. Die Leistung, mit welcher die Heizmatten betrieben werden, berechnet sich aus einer angelegten Spannung U und dem Widerstand der Heizmatte R. Diese Leistung, auch Verlustleistung Pv genannt, berechnet sich über die Formel Pv = U2/R, wird als thermische Abwärme abgestrahlt und erzeugt somit die gewünschte Erwärmung der Zellen.The requirements for automotive high-voltage batteries envisage operation over a wide temperature range, for example from -40 ° C to + 80 ° C. The operation of the battery, which may consist of lithium-ion cells, for example, in the low temperature range (T <0 ° C) is critical in that loading without preheating leads to inhomogeneous heating of the cells. The inhomogeneous heating can lead to irreversible damage to the cells. To counteract this damage, the battery is switched on a heater. For this purpose, heating resistors, in particular heating mats, are used, which are used to pre-temper the battery. Heating mats are physically understood as ohmic resistors. The power with which the heating mats are operated is calculated from an applied voltage U and the resistance of the heating mat R. This power, also called the power loss P v , is calculated using the formula P v = U 2 / R, called thermal waste heat emitted and thus produces the desired heating of the cells.
Der Stand der Technik besitzt den Nachteil, dass der Vorladewiderstand der Vorladeschaltung nur für die Dauer der Vorladung aktiv ist und ansonsten ohne weitere Funktion bleibt.The prior art has the disadvantage that the precharge of the precharge circuit is active only for the duration of the precharge and otherwise remains without further function.
Der Erfindung liegt die Aufgabe zu Grunde, ein energieeffizientes und platzsparendes Hochvolt-Bordnetz für ein Kraftfahrzeug bereitzustellen.The invention is based on the object to provide an energy-efficient and space-saving high-voltage electrical system for a motor vehicle.
Die Aufgabe wird durch eine Vorrichtung gemäß Patentanspruch 1, ein Kraftfahrzeug gemäß Patentanspruch 5 und ein Verfahren gemäß Patentanspruch 6 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind durch die Unteransprüche gegeben.The object is achieved by a device according to claim 1, a motor vehicle according to claim 5 and a method according to claim 6. Advantageous developments of the invention are given by the dependent claims.
Die erfindungsgemäße Vorrichtung zum Trennen und/oder Verbinden eines Hochvolt-Bordnetzes eines Kraftfahrzeugs mit einer Hochvolt-Energiequelle, umfasst zumindest ein Hauptschaltelement zum elektrischen Verbinden der Hochvolt-Energiequelle mit einem Pufferkondensator, eine Vorladeschaltung, die einen Vorladewiderstand aufweist, zum Vorladen des Pufferkondensators und eine Heizeinrichtung, die einen Heizwiderstand aufweist, zum Heizen der Hochvolt-Energiequelle, wobei der Heizwiderstand einen Anschluss zum Abgreifen des Vorladewiderstands von dem Heizwiderstand aufweist.The inventive device for disconnecting and / or connecting a high-voltage electrical system of a motor vehicle with a high-voltage power source comprises at least one main switching element for electrically connecting the high-voltage power source with a buffer capacitor, a precharge circuit having a precharge resistor for precharging the buffer capacitor and a A heater having a heating resistor for heating the high-voltage power source, wherein the heating resistor has a terminal for tapping the pre-charge of the heating resistor.
Mit anderen Worten bedeutet dies, dass der Widerstand der Heizeinrichtung so aufgeteilt wird, dass ein Widerstandswert zur Verfügung steht, der dem Wert des Vorladewiderstandes entspricht. Durch einen Abgriff kann dieser mit dem Wert des Heizwiderstandes identische Teilwiderstand der Heizeinrichtung zur Vorladung des Pufferkondensators genutzt werden. Daraus ergibt sich der Vorteil, dass bei gleichbleibender technischer Erfüllung aller Anforderungen die Anzahl der Komponenten reduziert wird.In other words, this means that the resistance of the heater is divided so that a resistance is available, which corresponds to the value of the pre-charging resistor. By tapping this can be used with the value of the heating resistor identical partial resistance of the heater for pre-charging the buffer capacitor. This results in the advantage that the number of components is reduced while maintaining technical compliance of all requirements.
Bevorzugt weist die Vorladeschaltung eine Vorladeschalteinheit auf, die dazu ausgelegt ist, die Vorladeschaltung mit dem Pufferkondensator zu verbinden und/oder von dem Pufferkondensator zu trennen. Dies kann beispielsweise in der Gestalt eines Vorladerelais realisiert sein.The precharge circuit preferably has a precharge switching unit which is designed to connect the precharge circuit to the buffer capacitor and / or to separate it from the buffer capacitor. This can be realized for example in the form of a pre-charge relay.
Ebenfalls bevorzugt weist die Heizeinrichtung eine Heizschalteinheit auf, die dazu ausgelegt ist, den Heizwiderstand mit der Hochvolten-Energiequelle zu verbinden und/oder den Heizwiderstand elektrisch von der Hochvoltenergiequelle zu trennen. Daraus ergibt sich der Vorteil, dass die Funktionalitäten der Heizeinrichtung und der Vorladung unabhängig genutzt werden. Die Ansteuerung der Heizeinrichtung erfolgt dabei über die Heizschalteinheit, wodurch ein aktives Ein- und Ausschalten ermöglicht wird.Also preferably, the heating device has a heating switching unit which is designed to connect the heating resistor to the high-voltage power source and / or to electrically disconnect the heating resistor from the high-voltage power source. This has the advantage that the functionalities of the heater and the summons are used independently. The activation of the Heating device takes place via the Heizschalteinheit, whereby an active switching on and off is made possible.
In einer Ausführungsform ist der Heizwiderstand der Heizeinrichtung als Heizmatte ausgebildet. Da eine Heizmatte besonders flexibel ausgebildet ist, kann sie platzsparend an der Batterie angeordnet werden.In one embodiment, the heating resistor of the heating device is designed as a heating mat. Since a heating mat is designed to be particularly flexible, it can be arranged to save space on the battery.
Das erfindungsgemäße Kraftfahrzeug umfasst die erfindungsgemäße Vorrichtung.The motor vehicle according to the invention comprises the device according to the invention.
Das erfindungsgemäße Verfahren dient zum Trennen und/oder Verbinden eines Hochvoltnetzes eines Kraftfahrzeugs mit einer Hochvolt-Energiequelle. Bei dem Verfahren wird eine Hochvolt-Energiequelle mit einem Pufferkondensator zumindest mit einem Hauptschaltelement elektrisch verbunden oder der Pufferkondensator wird mit einer Vorladeschaltung, die einen Vorladewiderstand aufweist, vorgeladen, wobei der Vorladewiderstand über einen Anschluss eines Heizwiderstands einer Heizeinrichtung zum Heizen der Hochvolt-Energiequelle abgegriffen wird.The inventive method is used for separating and / or connecting a high-voltage network of a motor vehicle with a high-voltage power source. In the method, a high voltage power source having a buffer capacitor is electrically connected to at least one main switching element or the buffer capacitor is precharged with a precharge circuit having a precharge resistor, wherein the precharge resistor is tapped via a terminal of a heating resistor of a heater for heating the high voltage power source ,
Es kann vorteilhaft sein, die Hochvolt-Energiequelle vor dem elektrischen Verbinden der Hochvolt-Energiequelle mit dem Pufferkondensator oder vor dem Vorladen des Pufferkondensators mit Hilfe der Heizeinrichtung zu heizen.It may be advantageous to heat the high-voltage power source prior to electrically connecting the high-voltage power source to the buffer capacitor or before pre-charging the buffer capacitor with the aid of the heater.
Die zuvor erwähnten Vorteile für die erfindungsgemäße Vorrichtung gelten sinngemäß für das erfindungsgemäße Verfahren.The aforementioned advantages for the device according to the invention apply mutatis mutandis to the inventive method.
Im Folgenden ist die Erfindung noch einmal anhand eines konkreten Ausführungsbeispiels erläutert. Hierzu wird auf die Figuren verwiesen.In the following, the invention is explained once again with reference to a concrete embodiment. Reference is made to the figures.
Dabei zeigen:Showing:
Bei dem im Folgenden erläuterten Ausführungsbeispiel handelt es sich um eine bevorzugte Ausführungsform der Erfindung. Bei dem Ausführungsbeispiel stellen aber die beschriebenen Komponenten der Ausführungsform jeweils einzelne, unabhängig voneinander zu betrachtende Merkmale der Erfindung dar, welche die Erfindung jeweils auch unabhängig voneinander weiterbilden und damit auch einzeln oder in einer anderen als der gezeigten Kombination als Bestandteil der Erfindung anzusehen sind. Des Weiteren ist die beschriebene Ausführungsform auch durch weitere der bereits beschriebenen Merkmale ergänzbar.The exemplary embodiment explained below is a preferred embodiment of the invention. In the exemplary embodiment, however, the described components of the embodiment each represent individual features of the invention, which are to be considered independently of each other, which also develop the invention independently of one another and thus also individually or in a different combination than the one shown as part of the invention. Furthermore, the described embodiment can also be supplemented by further features already described.
In
Der Heizwiderstand
Wenn nun die Vorladeschalteinheit
Wenn die Heizschalteinheit
Durch das Schließen von Hauptschütz HS1 und das Öffnen der Vorladeschalteinheit
Insgesamt ist somit durch das Beispiel das Vorladen mit Hilfe einer Heizmatte gezeigt.Overall, therefore, the example shows the pre-charging with the aid of a heating mat.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1010
- Hochvolt-BordnetzHigh-voltage electrical system
- 1212
- Batteriebattery
- 1414
- Pufferkapazitätbuffering capacity
- 1616
- Vorladeschaltungprecharge circuit
- 1818
- Vorladewiderstandprecharging
- 2020
- VorladeschalteinheitVorladeschalteinheit
- 2121
- Kombinationcombination
- 2222
- Heizeinrichtungheater
- 2323
- Restwiderstandresidual resistance
- 2424
- Heizwiderstandheating resistor
- 2525
- Anschlussconnection
- 2626
- HeizschalteinheitHeizschalteinheit
- 2828
- Sicherungfuse
- 3030
- Hochvolt-SteckerHigh-voltage connector
- HS1HS1
- Hauptschützmain contactor
- HS2HS2
- Hauptschützmain contactor
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE201410006344 DE102014006344A1 (en) | 2014-04-30 | 2014-04-30 | Pre-charging a motor vehicle high-voltage network by means of a heater |
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DE201410006344 DE102014006344A1 (en) | 2014-04-30 | 2014-04-30 | Pre-charging a motor vehicle high-voltage network by means of a heater |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200034A1 (en) * | 2019-01-04 | 2020-07-09 | Robert Bosch Gmbh | Electric vehicle, in particular construction machine, and method for operating an electric vehicle |
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2014
- 2014-04-30 DE DE201410006344 patent/DE102014006344A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102019200034A1 (en) * | 2019-01-04 | 2020-07-09 | Robert Bosch Gmbh | Electric vehicle, in particular construction machine, and method for operating an electric vehicle |
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